<template>
  <div class="xtx-cart-page">
    <!-- <button @click="$confirm({ text: 'xxx' })"> 点击弹出确认框 </button> -->
    <div class="container">
      <XtxBread>
        <XtxBreadItem to="/">首页</XtxBreadItem>
        <XtxBreadItem>购物车</XtxBreadItem>
      </XtxBread>
      <div class="cart">
        <!-- 删除了全部就显示空状态 -->
        <CartNone v-if="$store.getters['cart/validList'].length === 0" />
        <table v-else>
          <thead>
            <tr>
              <th width="120"><XtxCheckbox v-model="isCheckAll">全选</XtxCheckbox></th>
              <th width="400">商品信息</th>
              <th width="220">单价</th>
              <th width="180">数量</th>
              <th width="180">小计</th>
              <th width="140">操作</th>
            </tr>
          </thead>
          <!-- 有效商品 -->
          <tbody>
            <tr v-for="item in $store.getters['cart/validList']" :key="item.skuId">
              <td><XtxCheckbox v-model="item.selected" @change="$store.dispatch('cart/updateCart', item)" /></td>
              <td>
                <div class="goods">
                  <RouterLink to="/"><img :src="item.picture" alt=""></RouterLink>
                  <div>
                    <p class="name ellipsis">{{ item.name }}</p>
                    <!-- 🔔选择规格组件 -->
                    <CartSku :attrs-text="item.attrsText" :skuId="item.skuId" @change="updateCartSku(item.skuId, $event)" />
                  </div>
                </div>
              </td>
              <td class="tc">
                <p>&yen;{{ item.nowPrice }}</p>
                <p v-if="item.price -  item.nowPrice > 0" >比加入时降价 <span class="red">&yen;{{ item.price -  item.nowPrice }}</span></p>
              </td>
              <td class="tc">
                <XtxNumbox v-model="item.count" @change="$store.dispatch('cart/updateCart', item)" />
              </td>
              <td class="tc"><p class="f16 red">&yen;{{ (item.nowPrice * item.count).toFixed(2) }}</p></td>
              <td class="tc">
                <p><a href="javascript:;">移入收藏夹</a></p>
                <p><a @click="deleteCart(item.skuId)" class="green" href="javascript:;">删除</a></p>
                <p><a href="javascript:;">找相似</a></p>
              </td>
            </tr>
          </tbody>
          <!-- 无效商品 -->
          <tbody v-if="$store.getters['cart/invalidList'].length > 0">
            <tr><td colspan="6"><h3 class="tit">失效商品</h3></td></tr>
            <tr v-for="i in 3" :key="i">
              <td><XtxCheckbox style="color:#eee;" /></td>
              <td>
                <div class="goods">
                  <RouterLink to="/"><img src="https://yanxuan-item.nosdn.127.net/13ab302f8f2c954d873f03be36f8fb03.png" alt=""></RouterLink>
                  <div>
                    <p class="name ellipsis">和手足干裂说拜拜 ingrams手足皲裂修复霜</p>
                    <p class="attr">颜色：粉色 尺寸：14cm 产地：中国</p>
                  </div>
                </div>
              </td>
              <td class="tc"><p>&yen;200.00</p></td>
              <td class="tc">1</td>
              <td class="tc"><p>&yen;200.00</p></td>
              <td class="tc">
                <p><a class="green" href="javascript:;">删除</a></p>
                <p><a href="javascript:;">找相似</a></p>
              </td>
            </tr>
          </tbody>
        </table>
      </div>
      <!-- 操作栏 -->
      <div class="action">
        <div class="batch">
          <XtxCheckbox v-model="isCheckAll">全选</XtxCheckbox>
          <a @click="batchDeleteCart(false)" href="javascript:;">删除选中商品</a>
          <a href="javascript:;">移入收藏夹</a>
          <a @click="batchDeleteCart(true)" href="javascript:;">清空失效商品</a>
        </div>
        <div class="total">
          共 {{ $store.getters['cart/validTotal'] }} 件商品，已选择 {{ $store.getters['cart/selectedTotal'] }} 件，商品合计：
          <span class="red">¥ {{ $store.getters['cart/selectedAmount'] }}</span>
          <XtxButton @click="goCheckout()" type="primary">下单结算</XtxButton>
        </div>
      </div>
      <!-- 猜你喜欢 -->
      <GoodRelevant />
    </div>
  </div>
</template>

<script>
import GoodRelevant from '@/views/goods/components/goods-relevant.vue'
import CartNone from './components/cart-none.vue'
import CartSku from './components/cart-sku.vue'
import { computed } from 'vue'
import { useStore } from 'vuex'
import { Confirm } from '@/components/library/Confirm'
import { Message } from '@/components/library/Message'
import { useRouter } from 'vue-router'
export default {
  name: 'XtxCartPage',
  components: { GoodRelevant, CartNone, CartSku },
  setup () {
    const store = useStore()
    // Vuex 上使用 v-model: https://next.vuex.vuejs.org/zh/guide/forms.html
    const isCheckAll = computed({
      get: () => store.getters['cart/isCheckAll'],
      set: (val) => store.dispatch('cart/checkAllCart', val)
    })

    // 删除单个商品
    const deleteCart = (skuId) => {
      Confirm({ title: '温馨提示', text: '您确定从购物车删除该商品吗？' })
        .then(res => {
          store.dispatch('cart/deleteCart', skuId)
        }).catch(() => {})
    }

    // 删除所有选中商品
    const batchDeleteCart = (isInvalid) => {
      Confirm({ title: '温馨提示', text: `您确定删除所有${isInvalid === true ? '失效' : '选中'}商品吗？` })
        .then(res => {
          store.dispatch('cart/batchDeleteCart', isInvalid)
        })
    }

    const updateCartSku = (oldSkuId, newSku) => {
      console.log({ oldSkuId, newSku })
      store.dispatch('cart/updateCartSku', { oldSkuId: oldSkuId, newSku: newSku })
    }

    const router = useRouter()
    // 下单结算按钮
    const goCheckout = () => {
      // 判断是否选中有效商品。
      if (store.getters['cart/selectedTotal'] === 0) return Message({ message: '至少选中一件商品' })
      // 判断是否登录，给确认框提示，点击确认
      if (store.state.user.profile.token) {
        router.push('/member/checkout')
      } else {
        Confirm({ text: '下单结算需要登录，确认现在去登录吗？' }).then(() => {
          router.push('/member/checkout')
        }).catch(() => {})
      }
    }

    return { isCheckAll, deleteCart, batchDeleteCart, updateCartSku, goCheckout }
  }
}
</script>

<style scoped lang="less">
.tc {
  text-align: center;
  .xtx-numbox {
    margin: 0 auto;
    width: 120px;
  }
}
.red {
  color: @priceColor;
}
.green {
  color: @xtxColor
}
.f16 {
  font-size: 16px;
}
.goods {
  display: flex;
  align-items: center;
  img {
    width: 100px;
    height: 100px;
  }
  > div {
    width: 280px;
    font-size: 16px;
    padding-left: 10px;
    .attr {
      font-size: 14px;
      color: #999;
    }
  }
}
.action {
  display: flex;
  background: #fff;
  margin-top: 20px;
  height: 80px;
  align-items: center;
  font-size: 16px;
  justify-content: space-between;
  padding: 0 30px;
  .xtx-checkbox {
    color: #999;
  }
  .batch {
    a {
      margin-left: 20px;
    }
  }
  .red {
    font-size: 18px;
    margin-right: 20px;
    font-weight: bold;
  }
}
.tit {
  color: #666;
  font-size: 16px;
  font-weight: normal;
  line-height: 50px;
}
.xtx-cart-page {
  .cart {
    background: #fff;
    color: #666;
    table {
      border-spacing: 0;
      border-collapse: collapse;
      line-height: 24px;
      th,td{
        padding: 10px;
        border-bottom: 1px solid #f5f5f5;
        &:first-child {
          text-align: left;
          padding-left: 30px;
          color: #999;
        }
      }
      th {
        font-size: 16px;
        font-weight: normal;
        line-height: 50px;
      }
    }
  }
}
</style>
